no start
08-15-2013, 06:15 PM
#1
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Location: SW Ontario
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Car: 1988 GTA Trans AM
Engine: 305 TPI
Transmission: 5 speed
no start
Driving home tonite, car sputters and shuts off, wont restart, just cranks, n cranks. I was down to a 1/4 tank, was stopn for gas when this happened, thought maybe gas gauge was busted so got a can and put gas in it, just cranks, got it towed home
now looking for ideas, check spark and fuel pressure? I know theres gas in rail as if u push on Schrader valve it squirts gas
what pressure readn should it be when cranking?
any other ideas to check? fuses? relay?
Car is a 1988 GTA Trans AM, 305 TPI, 5 speed
thanks in advance to all
hooked up fuel pressure gauge, turned key to on, gauge went to 42, it dropped to 20 within 6 minutes, so doesn't seem to hold , but it is getn gas
now looking for ideas, check spark and fuel pressure? I know theres gas in rail as if u push on Schrader valve it squirts gas
what pressure readn should it be when cranking?
any other ideas to check? fuses? relay?
Car is a 1988 GTA Trans AM, 305 TPI, 5 speed
thanks in advance to all
hooked up fuel pressure gauge, turned key to on, gauge went to 42, it dropped to 20 within 6 minutes, so doesn't seem to hold , but it is getn gas
Last edited by lakeport; 08-15-2013 at 06:45 PM.
08-15-2013, 07:19 PM
#2
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Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Re: no start
Rail pressure is fine but does not mean the engine is " getting gas "
Pull a spark plug out, if it is wet you " have gas" ; if not the injectors are not being fired.
Test for injector pulse at the inj connectors using a noid light
If plugs are wet with fuel , check for spark
How to here.
http://easyautodiagnostics.com/gm_ic...n_module_1.php
Also read
https://www.thirdgen.org/forums/tech...formation.html
Pull a spark plug out, if it is wet you " have gas" ; if not the injectors are not being fired.
Test for injector pulse at the inj connectors using a noid light
If plugs are wet with fuel , check for spark
How to here.
http://easyautodiagnostics.com/gm_ic...n_module_1.php
Also read
https://www.thirdgen.org/forums/tech...formation.html
08-19-2013, 08:56 AM
#3
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Car: 1988 GTA Trans AM
Engine: 305 TPI
Transmission: 5 speed
Re: no start
So i got a spark plug tester, found no spark, decided to swap the ICM that I replaced last summer, car started, replaced with a new ICM under warranty, and all is good to go
many thanks for the help
many thanks for the help
08-22-2013, 11:13 AM
#4
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Car: 90 IROC 5.7 1LE CLONE 89 GTA 88IROC
Engine: 5.7TPI / 5.7TPI/ 5.7TPI/ 4.3 CMFI
Transmission: 700R4 UPGRADED 700R4STOCK700R4STOCK
Axle/Gears: 3.23 10 BOLT 3.27 9 BOLT 2.77 9BOLT
Re: no start
I CARRY IGN MODULE WITH ME. SAVED ME IN THE PAST.
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